# Amplitude: Unexpected "[Segment]" Prefix in Event Types

> Amplitude status incident “Unexpected "[Segment]" Prefix in Event Types” on 2025-06-05: impact minor (vendor’s label), 8 d, 1 update(s). Archived by Rewindex.

Canonical: https://rewindex.com/company/amplitude/incidents/cnln58d753js
Last updated: 2025-06-13T18:42:00Z

- Impact (vendor’s label): minor
- Status: resolved
- Started: 2025-06-05 16:01 UTC · Resolved: 2025-06-13 18:42 UTC · Duration: 8 d
- Updates: 1
- [Vendor status page: https://status.amplitude.com/incidents/cnln58d753js](https://status.amplitude.com/incidents/cnln58d753js)
- [Company: Amplitude](https://rewindex.com/company/amplitude.md)

## Timeline of updates

- **resolved** 2025-06-13 18:42 UTC: Amplitude has completed a data remediation plan to help impacted customers. The \[Segment\] prefix has been scrubbed from impacted events as of June 11, 2025. No action is required on your part. If you created an Amplitude event transformation as a short term fix to merge the incorrect event names, it is safe to remove those transformations now.

_From the vendor’s published history: only the final update text is available for incidents before Rewindex began polling this page._

## Cite this

Status incident (vendor impact label: minor) posted by Amplitude, started 2025-06-05 16:01 UTC, resolved after 8 d, 1 update(s).

- Canonical URL: https://rewindex.com/company/amplitude/incidents/cnln58d753js
- Citation: Amplitude, “Unexpected "[Segment]" Prefix in Event Types” (2025-06-05 16:01 UTC). Archived by Rewindex: https://rewindex.com/company/amplitude/incidents/cnln58d753js (CC BY 4.0).
- Markdown link: `[Amplitude: Unexpected "Segment" Prefix in Event Types (2025-06-05)](https://rewindex.com/company/amplitude/incidents/cnln58d753js)`


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Canonical: https://rewindex.com/company/amplitude/incidents/cnln58d753js · Markdown: https://rewindex.com/company/amplitude/incidents/cnln58d753js.md · JSON: https://rewindex.com/api/v1/companies/amplitude/incidents/cnln58d753js · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-05T16:06:23.288Z